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L-6990-1 — PLUG,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

L-6990-1: PLUG,PIPE.

The PLUG,PIPE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, body_type: SOLID, head_type: SOLID, core_depth: 0.828 INCHES NOMINAL IN, flow_angle: 90.0 DEGREES, leg_length: 0.820 INCHES NOMINAL ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-044-4689, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
L-6990-1
NSN: 4730-00-044-4689
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 46717 — PETTIBONE LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
body_typeSOLID
head_typeSOLID
core_depth0.828 INCHES NOMINAL IN
flow_angle90.0 DEGREES
leg_length0.820 INCHES NOMINAL ALL ENDS IN
seat_angle8.5 DEGREES SECOND END
sweep_typeSHORT
reducer_typeCONCENTRIC
thread_class2B ALL ENDS
exterior_colorGOLD OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
NSN4730-00-044-4689
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: L-6990-1 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 8
1732170Reference document
Same NSN cross-reference
Reference document — Secondary reference
401752Reference document
Same NSN cross-reference
Reference document — Secondary reference
J531Reference document
Same NSN cross-reference
Reference document — Secondary reference
297353PC16Reference document
Same NSN cross-reference
Reference document — Secondary reference
2 130109RReference document
Same NSN cross-reference
Reference document — Secondary reference
11004Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is L-6990-1?
L-6990-1 is a PLUG,PIPE.
What parts can replace L-6990-1?
There are 8 known substitutes for L-6990-1: 1732170, 401752, J531 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for L-6990-1?
L-6990-1 is cataloged in the U.S. Government catalog under NSN 4730-00-044-4689. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.